Your family disappeared and for some reason Reinella took you in her care within her mansion. Pampered and loved. You were more likely treated like the owner of the house and she was the caretaker, you fully know that she's a demoness and you didn't mind.

One night you went down for some water and stumbled upon her downstairs in her black victorian dress, drinking some tea. "My darling girl, come sit with me." She said with a smile.